3m-n=5
3m +5n=7
solve simultaneous equation
Answers
Answered by
1
Enter a problem...
Finite Math Examples
Popular Problems Finite Math Solve by Substitution 3m-n=5 , 2m+5n=7
3
m
−
n
=
5
,
2
m
+
5
n
=
7
Solve for
n
in the first equation.
Tap for more steps...
n
=
−
5
+
3
m
2
m
+
5
n
=
7
Replace all occurrences of
n
in
2
m
+
5
n
=
7
with
−
5
+
3
m
.
n
=
−
5
+
3
m
2
m
+
5
(
−
5
+
3
m
)
=
7
Simplify
2
m
+
5
(
−
5
+
3
m
)
.
Tap for more steps...
n
=
−
5
+
3
m
17
m
−
25
=
7
Solve for
m
in the second equation.
Tap for more steps...
n
=
−
5
+
3
m
m
=
32
17
Replace all occurrences of
m
in
n
=
−
5
+
3
m
with
32
17
.
n
=
−
5
+
3
(
32
17
)
m
=
32
17
Simplify
−
5
+
3
(
32
17
)
.
Tap for more steps...
n
=
11
17
m
=
32
17
Similar questions